ActionScript 3.0 :: Drawing A Transparent BitmapData Error
Mar 16, 2010
I have a huge background bitmapdata with a corresponding grid. I'm trying to draw the two parts onto a different bitmapdata, but for some reason, the bitmap for the grid is overriding the bitmapdata of the background that is being drawn first. The grid seems to be making the entire third bitmapdata transparent for some reason.
My code for creating the background and corresponding grid:
Code:
viewWidth=stage.stageWidth;
viewHeight=stage.stageHeight;
bmdScreen=new BitmapData(viewWidth,viewHeight,true);
[Code].....
I want to draw a grid on top of the background I have. For some reason, the grid is making the background underneath it transparent.
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Feb 5, 2012
I'm trying to draw PNGs onto BitmapData that is transparent.
I create my BitmapData like this (using ARGB for the color):
new BitmapData(width, height, true, 0x00000000);
And clean it by using the same ARGB value:
bitmapData.fillRect(bitmapData.rect, 0x00000000);
When I use copyPixels() to draw graphics onto the cleaned BitmapData, I get this result:
If I don't use ARGB for the BitmapData color, it works fine:
But I have to specify a solid fillColor, meaning I can't render what's behind the Bitmap.
How can I make my BitmapData transparent, but not have the above occur?
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Jan 31, 2007
I'm using Flash 8, with this code in the first frame:
import flash.display.BitmapData;
rissa._x=Stage.width/2;
rissa._y=Stage.height/2;[code].....
When I publish the file, I'm getting the following error message in the Output panel:
**Error** Scene=Scene 1, layer=Layer 2, frame=1:Line 7: The class or interface 'BitmapData.loadBitmap' could not be loaded.
var plaid:BitmapData.loadBitmap("plaid");
Total ActionScript Errors: 1 Reported Errors: 1
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Oct 14, 2009
I am trying to use the reflect class from "http://pixelfumes.blogspot.com/2007/03/reflection-class-v3-with-source .html" but I keep getting this error:
ArgumentError: Error #2015: Invalid BitmapData.
at flash.display::BitmapData()
at Reflect()
at Site_fla::GalleryPage_29/loadThumbs()
at Site_fla::GalleryPage_29/sortXML()
[Code]...
btw, first I used assigned thumbContainer as the mc argument (outside the loadThumbs() function) and it worked but not exactly what I wanted... because I thought it is supposed to update when the movieclip is animated but it actually didn't... when I use a scroller, only the thumbs that are first loaded to the stage get the reflection..
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Sep 15, 2010
I have a BitmapData object created dynamically that contains user-drawn shapes. I then attach that BitmapData object to a MovieClip via a Bitmap object and set that MovieClip as a mask to another MovieClip. The mask works but the whole bounding rectangle of the BitmapData is acting as the mask. But I want to exclude the transparent portion from the mask so only user-drawn shape can be set as mask. Can anyone tell how to achieve that?
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Jul 3, 2010
I have a code like this:
[Code]....
I want to make the white color in the generated PNG transparent.
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May 13, 2010
I have a list of images, and without scanning through each pixel in each image, I want to find out if the image contains transparency (at least one non-opaque pixel).Is there a shortcut to do this (like a property of bitmapData object) rather than looping through the pixels?
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Jun 6, 2011
Is there any way of checking what percentage of the BitmapData is filled, and what percentage is transparent?You could easily brute-force it by looping through each pixel and counting which ones are empty
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May 21, 2009
When I have a movie clip, it starts out s transparent. I can draw on this movie clip, producing essentially a transparent image. That is, wherever I have not yet drawn, shows the layer below, and where I have drawn, it shows what I have just drawn.
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Jun 23, 2010
I've seen the BitmapData object used for graphics a fair bit, especially in games. Many of these cases have done things in somewhat fundamentally different ways, and I was wondering what the best way generally is.
Method 1: Each animation frame is kept in a separate BitmapData object using an array.
Method 2: The animation is kept in a strip using a single BitmapData object and using the "sourceRect" parameter of copyPixels.
The draw and hitTest methods appear not to provide any "sourceRect" parameter. Most of the code I have seen using method 2 has worked around this by copying the bitmap frame into a temporary bitmap for these methods. This seems like quite a large processing overhead to me. Using method 1 this is generally not a problem, unless hitTest needs to be used with scaling and/or rotation, in which case a temporary transformed copy is still needed it seems as hitTest doesn't except a transformation.
I'm thinking method 1 is the better choice since it avoids having to make temporary copies for the most part, and I don't think it would waste much memory (just the duplicated width, height, etc values?). Is this generally true or is there a reason lots of people seem to do things the second way?
Also is there a better way to use hitTest for bitmaps that have been scaled, rotated, etc?
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May 8, 2009
what i need to do is basically a motion trail on a bitmap.
I want to continuously draw a bitmap onto itself while previous versions are faded into the background, similar to a smoke type effect.
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Nov 3, 2011
its possible to make a glow filter effect around ONLY the image in a loaded transparent PNG?
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Oct 28, 2010
im trying to draw opaque pixels on a transparent bitmapdata background
heres the ex:
ActionScript Code:
//TRANSPARENT BACKGROUND
var _pixelColor:uint = 0x9998002E;
var _bmpd:BitmapData = new BitmapData(4, 7, true, 0x00333333);
[Code].....
This example paints 2 arrows, the first is using the transparent background, and the second is using an opaque background on the BitmapData.
What I'm trying to achieve is to paint the pixels of the arrow completely opaque on the transparent background. But as you can see, the pixel is at 99% of its opacity (var _pixelColor:uint = 0x9998002E) How can I paint 100% opaque pixels on a transparent BitmapData "canvas"?
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May 2, 2009
I am trying to use the bitmapData.setPixels method to set certain pixels in the bitmap transparent.But no matter what I do, it always seems to set the pixel(s) black (non-transparent).Here is my code:
[AS]
bmpd = new ImageFromLibrary(0, 0);
bmpd.setPixel(0, 0, 0x00000000);
[/AS]
why its not setting the pixel(s) transparent?
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Apr 10, 2010
i've created a simple drawing application with colors, a clear button, and a save function, but my problem is i want what people draw to become the head of a character in my animation.I would LOVE a transparent backround too to whatever they draw,
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Apr 20, 2009
I wanted to use the well known method for turning your vector graphic into bitmaps.Ie, something like:
Code:
var bmd:BitmapData = new BitmapData(src.width, src.height)
bmd.draw(src);
[code].....
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Mar 17, 2011
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Feb 6, 2011
I have the following display hierarchy:- - container- - - objectI need to draw 'object' to a BitmapData instance which matches object.getBounds(stage) rectangle area. So the first part is easy:
ActionScript Code:
var rect:Rectangle = object.getBounds(stage);
var bmp:BitmapData = new BitmapData(rect.width, rect.height, true, 0x00000000);
[code]......
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Jan 9, 2012
I am having an issue with using BitmapData.draw(stage). I am getting the following error:
SecurityError: Error #2123: Security sandbox violation: BitmapData.draw: file:///C|/Documents%20and%20Settings/bla...bla...bla.swf cannot access null. No policy files granted access. Here is a portion of my code:
var bd:BitmapData = new BitmapData(2800, 2100); bd.draw(stage);//this is where the error happens All of the files referenced (.xml/.jpg/.swf) are located in the same local folder as the main .swf. How do I get around this error? The main objective is to print the stage using PrintJob(). I am using Flash Professional CS5.5 and publishing to Flash 10.0/10.1. Let me know if I need to supply any more info.
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Aug 27, 2010
I have two png files. I import them using loaders. The images in the png files each have opaque (solid) and transparent parts. I want to use the bitmapdata.hittest method to detect when their opaque parts have collided.
[Code]...
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Apr 16, 2009
i am creating a very simple particle system. My only issue is trying to create a blurry trail effect on the particles in motion. I started by creating a large bitmap container, and applying a colormatrix filter and a blur filter . It seems to do the trick , but the issue now, is i have to make this container cover the stage, which has a two unwanted a effects:
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I'm getting this one: Error #2123: Security sandbox violation: BitmapData.draw
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Code:
private function init():void {
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[Code] .....
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May 27, 2011
I am using a custom Flex skin to create an active blur/frosted glass effect on the background of floating Panels, TitleWindows, and other containers (similar to http:url....). There is a background image in the Application skin, and potentially any number of other components above and below the active blur component. Here's some relevant code within the skin:
public static const BLUR_FILTER :BlurFilter = new BlurFilter(16, 16, BitmapFilterQuality.HIGH);
private var _bitmapFill :BitmapFill = new BitmapFill;
private var _matrix :Matrix = new Matrix;[code]....
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I've read about using scrollRect and cacheAsBitmap, but I'm not sure where to apply these properties (or other optimizations I'm not aware of) within the Application or its components.
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Oct 23, 2011
Code:
addEventListener(Event.ENTER_FRAME, Pixel_Perfect);
function Pixel_Perfect(e:Event):void
{[code]....
Enemy1 is a class is that makes a difference
I didn't write this code as i am not this advanced yet but really needed this script, this script normally works but now i am recieving errors
Error: ArgumentError: Error #2015: Invalid BitmapData.
at flash.display::BitmapData/ctor()
at flash.display::BitmapData()
at IceMountain_fla::MainTimeline/Pixel_Perfect()
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Aug 5, 2011
I have this function:
public static function cloneDpObj(target:DisplayObject):Bitmap
{
var duplicate:Bitmap;
[code]....
to clone target displayObject (MovieClip or Sprite) and return Bitmap Object.
It can get bitmap from the target object, but it seem don't get all the area of the image.
By give the width and height of target object, but the target object in design was applied by Glow Effect, so my question can we get the all view of bitmapdata from a displayobject?
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Jun 17, 2009
export a drawing made in flash as a transparent png in actionscript I know you can do it as a jpg with a white background but can you export the transparency?
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May 4, 2010
I'm getting an Invalid BitmapData Error #2015 at flash.display::BitmapData$iinit() that points to the line of code below where a BitmapData object is created. I am using this function to create only a few hundred Item objects, each of which is only 166 px by 96 px in size so I don't believe that the problem has to do with running out of memory. I also used system.totalMemory to trace memory consumption but it showed that only a few tens of megabytes were used when the error occurred. I have tried setting the BitmapData and Bitmap objects to null because that was a solution I found on another site. That didn't work. I tried dispose(). The error occurs intermittently, sometimes after running my app a few times and sometimes when I first load it. I am not refreshing my browser over and over in order to run the app. I cannot figure out the exact sequence of events that leads to this error. In earlier versions of my app, I was able to successfully use the exact same function (minus the lines where the BitmapData and Bitmap objects are set to null).
public function cloneItem(item:Item):Item {
var itemClone:Item = new Item(item.ID, item.name, item.bpCost, item.bcCost, item.quantity);
var tempBitmap:Bitmap;
[code]....
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May 12, 2010
I am writing a slideshow that takes a random image from a media RSS feed and creates a bitmap and adds it to the stage in a random position on the stage so that each new image lays on top of the last. The actionscipt works fine, but after a time, the computer runs out of memory and I get a ArgumentError: Error #2015: Invalid BitmapData. error.
My thought was, instead of adding child on top of child, I would just add the new image to the original bitmap or perhaps a copy of the bitmap and swap from old to new with each newly added image. Is this a possible solution and can anyone help with some code ideas? All the examples of BitmapData.draw() show only addig one object at a time per bitmap. I don't know if it is possible to add/merge/combine bitmaps.
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